Observation by Peter Mulligan: NGC 457

Uploaded by

Peter Mulligan

Observer

Peter Mulligan

Observed

2019 Sep 07 - 21:23

Uploaded

2019 Sep 09 - 17:14

Objects

The Dragonfly Cluster (NGC457)

Equipment

Skywatcher 200p on EQ5
Canon 1100D

Exposure

45-30 sec, 800 ISO,

Location

Sheffield, UK

Target name

NGC 457

Title

NGC 457

About this image

This open cluster in Cassiopeia as got a few nicknames, The Owl or ET cluster etc. Gaia DR2 gives its distance as over 10,000 l/y, The bright star Phi Cas is spectral type F0Ia a luminous super giant. Gaia data puts its distance at 13,000l/y, so if this is correct its absolute magnitude would be -8.0M, that is a whopping 135,000 times the Suns luminosity

Files associated with this observation

NGC 457.jpg (1.4 MB)

Like this image

Jeremy Shears, Neil Morrison, Grant Privett, David Basey, Nick Hewitt, Ray Emery, Graham Winstanley, Chris Dole, Dean Ashton, Andy Wilson, Mr Leonard Entwisle, Peter Carson, Andrew Dumbleton

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